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This video shows how to create a table of (x,y) values from the information in your quadratic equation/function to sketch your parabola. *Remember that "y" and "f(x)" are basically treated the same way.
Source: youtube: Brandon Grasley
This tutorial explains how to find the vertex of the parabola of a quadratic function when you are given the equation in either "standard form" or "vertex form".
Source: Youtube: Mathbff
Here we see how to find the min/max "y" values of our parabola. Remember that if your leading coefficient is positive, your parabola opens up and your y value is a "minimum" value. If your leading coefficient is negative, your parabola opens down and your y value is a "maximum" value.
Source: Youtube: patrickJMT
This video shows you how to find the domain and range of your quadratic function's graph, and describe them in interval notation.
Source: Youtube: Kyle Ritter
This video shows you what the "parent" absolute value function looks like in a graph. It also demonstrates the transformations that occur when we make changes to this equation. Similar transformations occur when we modify the "parent" quadratic equation.
Source: youtube: Jeremy Duncan